<div class="mdl-cell mdl-cell--4-col">
    <div class="img-container">
        <img ng-src="{{userInfo.headImg}}" head-cropper>
    </div>
    <div class="cropper-outer">
        <div class="cropper-preview"></div>
        <div class="cropper-bar">
            <p>
                <label class="button button-small button-border button-rounded">
                    <input type="file" class="sr-only" accept="image/*"
                           head-chose>
                    选择图片
                </label>
            </p>
            <p>
                <button type="button"
                        class="button button-small button-glow button-rounded button-raised button-primary"
                        head-upload>
                    上传头像
                </button>
            </p>
        </div>
    </div>
</div>